The local complaint is not related to Sharper's arrest on Friday in Los Angeles, where he is charged with rape in connection with incidents that allegedly took place last October and earlier this month. TMZ.com first reported the arrest.

In the New Orleans matter, a woman contacted New Orleans police in September 2013 alleging Sharper sexually assaulted her. An NOPD spokesperson confirmed that the department received the complaint and launched an investigation.

A statement in response to the I-Team's request for comment reads: "The NOPD is investigating an allegation of sexual assault filed against Darren Sharper. As with every case alleging sexual assault, information gathered is extremely sensitive and the top priority of the detectives is to protect the person who filed the complaint. Because this is an ongoing criminal investigation, we cannot provide additional information at this time."

That case remains open and active. Detectives are investigating what is described as a simple rape -- or sexual assault -- complaint. Officials did not provide any specifics, such as where the incident happened, but sources told WDSU the encounter between Sharper and the alleged victim took place at a private residence in the Warehouse District.

Sharper is represented locally by a New Orleans defense attorney, who was not immediately available for comment.

The 38-year-old All Pro, who won a Super Bowl while with the Saints, has served as a NFL Network analyst in recent years. He was suspended on Saturday without pay.